diff options
Diffstat (limited to 'compiler/rustc_session/src')
| -rw-r--r-- | compiler/rustc_session/src/config.rs | 264 |
1 files changed, 147 insertions, 117 deletions
diff --git a/compiler/rustc_session/src/config.rs b/compiler/rustc_session/src/config.rs index 0c4827ef54d..979db9424f3 100644 --- a/compiler/rustc_session/src/config.rs +++ b/compiler/rustc_session/src/config.rs @@ -12,7 +12,7 @@ use std::hash::Hash; use std::path::{Path, PathBuf}; use std::str::{self, FromStr}; use std::sync::LazyLock; -use std::{fmt, fs, iter}; +use std::{cmp, fmt, fs, iter}; use rustc_data_structures::fx::{FxHashSet, FxIndexMap}; use rustc_data_structures::stable_hasher::{StableOrd, ToStableHashKey}; @@ -1367,11 +1367,36 @@ pub fn build_target_config(early_dcx: &EarlyDiagCtxt, opts: &Options, sysroot: & } #[derive(Copy, Clone, PartialEq, Eq, Debug)] -enum OptionStability { +pub enum OptionStability { Stable, Unstable, } +#[derive(Copy, Clone, PartialEq, Eq, Debug)] +pub enum OptionKind { + /// An option that takes a value, and cannot appear more than once (e.g. `--out-dir`). + /// + /// Corresponds to [`getopts::Options::optopt`]. + Opt, + + /// An option that takes a value, and can appear multiple times (e.g. `--emit`). + /// + /// Corresponds to [`getopts::Options::optmulti`]. + Multi, + + /// An option that does not take a value, and cannot appear more than once (e.g. `--help`). + /// + /// Corresponds to [`getopts::Options::optflag`]. + /// The `hint` string must be empty. + Flag, + + /// An option that does not take a value, and can appear multiple times (e.g. `-O`). + /// + /// Corresponds to [`getopts::Options::optflagmulti`]. + /// The `hint` string must be empty. + FlagMulti, +} + pub struct RustcOptGroup { apply: Box<dyn Fn(&mut getopts::Options) -> &mut getopts::Options>, pub name: &'static str, @@ -1402,58 +1427,37 @@ impl RustcOptGroup { } } -// The `opt` local module holds wrappers around the `getopts` API that -// adds extra rustc-specific metadata to each option; such metadata -// is exposed by . The public -// functions below ending with `_u` are the functions that return -// *unstable* options, i.e., options that are only enabled when the -// user also passes the `-Z unstable-options` debugging flag. -mod opt { - // The `fn flag*` etc below are written so that we can use them - // in the future; do not warn about them not being used right now. - #![allow(dead_code)] - - use super::RustcOptGroup; - - type R = RustcOptGroup; - type S = &'static str; - - fn stable<F>(name: S, f: F) -> R - where - F: Fn(&mut getopts::Options) -> &mut getopts::Options + 'static, - { - RustcOptGroup::stable(name, f) - } - - fn unstable<F>(name: S, f: F) -> R - where - F: Fn(&mut getopts::Options) -> &mut getopts::Options + 'static, - { - RustcOptGroup::unstable(name, f) - } - - fn longer(a: S, b: S) -> S { - if a.len() > b.len() { a } else { b } - } - - pub(crate) fn opt_s(a: S, b: S, c: S, d: S) -> R { - stable(longer(a, b), move |opts| opts.optopt(a, b, c, d)) - } - pub(crate) fn multi_s(a: S, b: S, c: S, d: S) -> R { - stable(longer(a, b), move |opts| opts.optmulti(a, b, c, d)) - } - pub(crate) fn flag_s(a: S, b: S, c: S) -> R { - stable(longer(a, b), move |opts| opts.optflag(a, b, c)) - } - pub(crate) fn flagmulti_s(a: S, b: S, c: S) -> R { - stable(longer(a, b), move |opts| opts.optflagmulti(a, b, c)) - } - - fn opt(a: S, b: S, c: S, d: S) -> R { - unstable(longer(a, b), move |opts| opts.optopt(a, b, c, d)) - } - pub(crate) fn multi(a: S, b: S, c: S, d: S) -> R { - unstable(longer(a, b), move |opts| opts.optmulti(a, b, c, d)) +pub fn make_opt( + stability: OptionStability, + kind: OptionKind, + short_name: &'static str, + long_name: &'static str, + desc: &'static str, + hint: &'static str, +) -> RustcOptGroup { + RustcOptGroup { + name: cmp::max_by_key(short_name, long_name, |s| s.len()), + stability, + apply: match kind { + OptionKind::Opt => Box::new(move |opts: &mut getopts::Options| { + opts.optopt(short_name, long_name, desc, hint) + }), + OptionKind::Multi => Box::new(move |opts: &mut getopts::Options| { + opts.optmulti(short_name, long_name, desc, hint) + }), + OptionKind::Flag => { + assert_eq!(hint, ""); + Box::new(move |opts: &mut getopts::Options| { + opts.optflag(short_name, long_name, desc) + }) + } + OptionKind::FlagMulti => { + assert_eq!(hint, ""); + Box::new(move |opts: &mut getopts::Options| { + opts.optflagmulti(short_name, long_name, desc) + }) + } + }, } } @@ -1468,46 +1472,60 @@ The default is {DEFAULT_EDITION} and the latest stable edition is {LATEST_STABLE /// including metadata for each option, such as whether the option is /// part of the stable long-term interface for rustc. pub fn rustc_short_optgroups() -> Vec<RustcOptGroup> { + use OptionKind::{Flag, FlagMulti, Multi, Opt}; + use OptionStability::Stable; + + use self::make_opt as opt; + vec![ - opt::flag_s("h", "help", "Display this message"), - opt::multi_s("", "cfg", "Configure the compilation environment. - SPEC supports the syntax `NAME[=\"VALUE\"]`.", "SPEC"), - opt::multi_s("", "check-cfg", "Provide list of expected cfgs for checking", "SPEC"), - opt::multi_s( + opt(Stable, Flag, "h", "help", "Display this message", ""), + opt( + Stable, + Multi, + "", + "cfg", + "Configure the compilation environment.\n\ + SPEC supports the syntax `NAME[=\"VALUE\"]`.", + "SPEC", + ), + opt(Stable, Multi, "", "check-cfg", "Provide list of expected cfgs for checking", "SPEC"), + opt( + Stable, + Multi, "L", "", - "Add a directory to the library search path. The - optional KIND can be one of dependency, crate, native, - framework, or all (the default).", + "Add a directory to the library search path. \ + The optional KIND can be one of dependency, crate, native, framework, or all (the default).", "[KIND=]PATH", ), - opt::multi_s( + opt( + Stable, + Multi, "l", "", - "Link the generated crate(s) to the specified native - library NAME. The optional KIND can be one of - static, framework, or dylib (the default). - Optional comma separated MODIFIERS (bundle|verbatim|whole-archive|as-needed) - may be specified each with a prefix of either '+' to - enable or '-' to disable.", + "Link the generated crate(s) to the specified native\n\ + library NAME. The optional KIND can be one of\n\ + static, framework, or dylib (the default).\n\ + Optional comma separated MODIFIERS\n\ + (bundle|verbatim|whole-archive|as-needed)\n\ + may be specified each with a prefix of either '+' to\n\ + enable or '-' to disable.", "[KIND[:MODIFIERS]=]NAME[:RENAME]", ), make_crate_type_option(), - opt::opt_s("", "crate-name", "Specify the name of the crate being built", "NAME"), - opt::opt_s( - "", - "edition", - &EDITION_STRING, - EDITION_NAME_LIST, - ), - opt::multi_s( + opt(Stable, Opt, "", "crate-name", "Specify the name of the crate being built", "NAME"), + opt(Stable, Opt, "", "edition", &EDITION_STRING, EDITION_NAME_LIST), + opt( + Stable, + Multi, "", "emit", - "Comma separated list of types of output for \ - the compiler to emit", + "Comma separated list of types of output for the compiler to emit", "[asm|llvm-bc|llvm-ir|obj|metadata|link|dep-info|mir]", ), - opt::multi_s( + opt( + Stable, + Multi, "", "print", "Compiler information to print on stdout", @@ -1516,41 +1534,36 @@ pub fn rustc_short_optgroups() -> Vec<RustcOptGroup> { tls-models|target-spec-json|all-target-specs-json|native-static-libs|\ stack-protector-strategies|link-args|deployment-target]", ), - opt::flagmulti_s("g", "", "Equivalent to -C debuginfo=2"), - opt::flagmulti_s("O", "", "Equivalent to -C opt-level=2"), - opt::opt_s("o", "", "Write output to <filename>", "FILENAME"), - opt::opt_s( - "", - "out-dir", - "Write output to compiler-chosen filename \ - in <dir>", - "DIR", - ), - opt::opt_s( + opt(Stable, FlagMulti, "g", "", "Equivalent to -C debuginfo=2", ""), + opt(Stable, FlagMulti, "O", "", "Equivalent to -C opt-level=2", ""), + opt(Stable, Opt, "o", "", "Write output to <filename>", "FILENAME"), + opt(Stable, Opt, "", "out-dir", "Write output to compiler-chosen filename in <dir>", "DIR"), + opt( + Stable, + Opt, "", "explain", - "Provide a detailed explanation of an error \ - message", + "Provide a detailed explanation of an error message", "OPT", ), - opt::flag_s("", "test", "Build a test harness"), - opt::opt_s("", "target", "Target triple for which the code is compiled", "TARGET"), - opt::multi_s("A", "allow", "Set lint allowed", "LINT"), - opt::multi_s("W", "warn", "Set lint warnings", "LINT"), - opt::multi_s("", "force-warn", "Set lint force-warn", "LINT"), - opt::multi_s("D", "deny", "Set lint denied", "LINT"), - opt::multi_s("F", "forbid", "Set lint forbidden", "LINT"), - opt::multi_s( + opt(Stable, Flag, "", "test", "Build a test harness", ""), + opt(Stable, Opt, "", "target", "Target triple for which the code is compiled", "TARGET"), + opt(Stable, Multi, "A", "allow", "Set lint allowed", "LINT"), + opt(Stable, Multi, "W", "warn", "Set lint warnings", "LINT"), + opt(Stable, Multi, "", "force-warn", "Set lint force-warn", "LINT"), + opt(Stable, Multi, "D", "deny", "Set lint denied", "LINT"), + opt(Stable, Multi, "F", "forbid", "Set lint forbidden", "LINT"), + opt( + Stable, + Multi, "", "cap-lints", - "Set the most restrictive lint level. \ - More restrictive lints are capped at this \ - level", + "Set the most restrictive lint level. More restrictive lints are capped at this level", "LEVEL", ), - opt::multi_s("C", "codegen", "Set a codegen option", "OPT[=VALUE]"), - opt::flag_s("V", "version", "Print version info and exit"), - opt::flag_s("v", "verbose", "Use verbose output"), + opt(Stable, Multi, "C", "codegen", "Set a codegen option", "OPT[=VALUE]"), + opt(Stable, Flag, "V", "version", "Print version info and exit", ""), + opt(Stable, Flag, "v", "verbose", "Use verbose output", ""), ] } @@ -1558,25 +1571,36 @@ pub fn rustc_short_optgroups() -> Vec<RustcOptGroup> { /// each option, such as whether the option is part of the stable /// long-term interface for rustc. pub fn rustc_optgroups() -> Vec<RustcOptGroup> { + use OptionKind::{Multi, Opt}; + use OptionStability::{Stable, Unstable}; + + use self::make_opt as opt; + let mut opts = rustc_short_optgroups(); // FIXME: none of these descriptions are actually used opts.extend(vec![ - opt::multi_s( + opt( + Stable, + Multi, "", "extern", "Specify where an external rust library is located", "NAME[=PATH]", ), - opt::opt_s("", "sysroot", "Override the system root", "PATH"), - opt::multi("Z", "", "Set unstable / perma-unstable options", "FLAG"), - opt::opt_s( + opt(Stable, Opt, "", "sysroot", "Override the system root", "PATH"), + opt(Unstable, Multi, "Z", "", "Set unstable / perma-unstable options", "FLAG"), + opt( + Stable, + Opt, "", "error-format", "How errors and other messages are produced", "human|json|short", ), - opt::multi_s("", "json", "Configure the JSON output of the compiler", "CONFIG"), - opt::opt_s( + opt(Stable, Multi, "", "json", "Configure the JSON output of the compiler", "CONFIG"), + opt( + Stable, + Opt, "", "color", "Configure coloring of output: @@ -1585,19 +1609,23 @@ pub fn rustc_optgroups() -> Vec<RustcOptGroup> { never = never colorize output", "auto|always|never", ), - opt::opt_s( + opt( + Stable, + Opt, "", "diagnostic-width", "Inform rustc of the width of the output so that diagnostics can be truncated to fit", "WIDTH", ), - opt::multi_s( + opt( + Stable, + Multi, "", "remap-path-prefix", "Remap source names in all output (compiler messages and output files)", "FROM=TO", ), - opt::multi("", "env-set", "Inject an environment variable", "VAR=VALUE"), + opt(Unstable, Multi, "", "env-set", "Inject an environment variable", "VAR=VALUE"), ]); opts } @@ -2760,7 +2788,9 @@ fn parse_pretty(early_dcx: &EarlyDiagCtxt, unstable_opts: &UnstableOptions) -> O } pub fn make_crate_type_option() -> RustcOptGroup { - opt::multi_s( + make_opt( + OptionStability::Stable, + OptionKind::Multi, "", "crate-type", "Comma separated list of types of crates |